You can do two things, either one, you can contact technical support that specializes in 3DS to get them to fix it, or two, return the 3DS XL for a new one.
if switching on and off doesn't work, try tapping the top left corner of the screen with the stylus. That works on my DS XL.
Blue screen when playing online
If you get a black screen after installing mods, then it is a compatibility or incorrect install problem. If you get a black screen normally, force an update and this will probably fix it.
If the black marks are dead pixels then you have to replace the screen you cant fix it.
you can not
The following 4 ways can help you to repair your iPhone Stuck on Black Screen: 1.Fix iPhone Black Screen Problem with TunesKit iOS System Recovery Step 1, Connect iPhone to the computer Step 2, Download frimware package Step 3, Fix your iPhone 2,Fix iPhone Black Screen Problem by Hard Reboot 3,Restore iPhone to Factory Setting to Fix iPhone Black Screen 4,Seek for Apple Genius Bar to Fix iPhone Black Screen
That's the bluescreen of death.... Call computer company.
if the screen is black you cant fix it is an internal crack that spread to the external part of the phone.
Go to the Start Menu > Settings > Blue Screen of Death > Off
You can fix Wii Black screen without sending it into Nintendo by pulling out the plugs at the back, and re inserting them.
Tell The Kid To Fix IT
Macs don't get the Blue screen of death. Only Windows 95 to Windows 7
During the boot up screen, consistently hit F10, and a screen saying "Would you like to change blue screen of death settings." From then, follow the on screen instructions to fix your blue screen of death problems.